Question

Two bodies which are equal mass ,move with uniform velocities of 6 ms¹ and 18ms¹ respectively. Find the ratio of their kinetic energies​

Answer 1

Answer:

1 : 9

Explanation:

$\frac{KE_{1} }{KE_{2} }$ = $\frac{1}{2}m (6)^2/\frac{1}{2}m (18)^2$ =  $\frac{6^2}{18^2}$ = $\frac{36}{18*18}$ = 1/9

Since the masses are equal they get cancelled out.

Your final answer is 1 : 9

Hope u get it !

Good Luck !!!